1. In question one I have to make a table (the one below) and give the differences between DIAMOND and GRAPHITE. Diamond<Tab/>Graphite MOLECULE STRUCTURE<Tab/> Carbon atoms form a single bond to four other atoms. They are arranged in tetrahedral geometry. They are shaped in cubes. <Tab/>Each carbon atom is bonded with three neighbours. They are shaped hexagonal. PHYSICAL APPERANCE&…showed first 75 words of 1007 total…

…showed last 75 words of 1007 total…pentagon is surrounded by 5 hexagons. 60 carbon atoms are arranged in a sphere. 16. The dead star LUCY has been measured to be 50 light years from earth. How long , or what distance is a 'light year' and how far is LUCY from us here on earth? One light year is 9,500,000,000,000km. So LUCY is 475,000,000,000,00km away from earth. Light years are used because in the universe km is a very small measure as the universe is huge.